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A 25 year old woman presented with paresthesias of arms and legs for two weeks. The paresthesias resolved in the legs but persisted in the arms. Other than increased reflexes, the neurologic examination was normal.
Sagittal T2-weighted MRI image demonstrate an area of increased signal in the posterior aspect of the spinal cord at the C3-4 level. Looking closer, there may be additional abnormalities at the T3-T4 levels. The cord is not expanded. Transverse myelitis may occur in multiple sclerosis, lupus, or may occur as an idiopathic autoimmune condition.
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